Home / 28,405.76-39,200.08-16,476.16

Finding the Fourth Proportional to 28,405.76, 39,200.08 and 16,476.16

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Solution

The fourth proportional to 28,405.76, 39,200.08 and 16,476.16 is: 22,737.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.76 : 39,200.08 = 16,476.16 : x
  2. Step 2: Convert to fraction form
    28,405.76/39,200.08 = 16,476.16/x
  3. Step 3: Cross multiply
    28,405.76x = 39,200.08 × 16,476.16
  4. Step 4: Simplify right side
    28,405.76x = 645,866,790.09
  5. Step 5: Solve for x
    x = 645,866,790.09/28,405.76
  6. Step 6: Final answer
    x = 22,737.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.